The next two weeks are typically the slowest two weeks in the search industry (and probably most other industries). It is the holiday week, with Christmas and New Years coming, as well as it being the first day of Winter today.
Google already started their holiday logo blast, although Google missed Chanukah this year, they are calling the logos "Holiday logos". You will be able to see a new one every day and Google will archive them at google.com/logos/holidays-2009.html. Here is the first one:
Like I said, Google will have a new logo each day (maybe I will update this post here or make a new one for those).
Google # 2:
Google # 3:
Google # 4:
Yahoo is running a flash based logo also for the past few days:
But today is actually the first day of Winter here on our side of the world. And for the day, we have a nice theme from Bing, YouTube and from ourselves as well:
Search Engine Roundtable Winter:
Happy holidays, cold winter and relaxing/healthy next two weeks.
Update: Bing, Yahoo, Ask and many others posted their Christmas eve logos. You can see them all at Christmas Logos From Google, Yahoo, Bing, Ask & Others (2009).